Small angle neutron scattering study of the magnetic flux-line lattice in single crystal 2H-NbSe2.
Small angle neutron scattering study of the magnetic flux-line lattice in single crystal 2H-NbSe2.
复制标题
DOI：
10.1103/physrevlett.72.278
复制
发表时间：
1994-01
影响因子：
8.6
通讯作者：
P. Gammel;D. Huse;Rafael N. Kleiman;B. Batlogg;C. Oglesby;Ernst Bucher;D. J. Bishop;T. E. Mason;Kell Mortensen
中科院分区：
文献类型：
--
作者：
P. Gammel;D. Huse;Rafael N. Kleiman;B. Batlogg;C. Oglesby;Ernst Bucher;D. J. Bishop;T. E. Mason;Kell Mortensen
本文报道了单晶2h - nbse2中通量线晶格的小角中子散射研究。当磁场偏离晶体c轴时，我们发现在质量各向异性Γ= 10.1±0.9时所期望的通量晶格中的畸变。然而，我们发现晶格取向与各向异性伦敦理论和金兹堡-朗道理论的预测不一致。观测到的磁通晶格取向与所研究的场取向的晶格取向保持一致。在对伦敦方程的金兹堡-朗道修正的框架内，可以定量地理解形状因子。
We report on a small angle neutron scattering study of the flux-line lattice in single crystal 2H-NbSe 2. As the magnetic field is tilted away from the crystalline c axis, we find distortions in the flux lattice as would be expected for a mass anisotropy Γ= 10.1±0.9. However, we find that the lattice orientation is in disagreement with the predictions of both anisotropic London and Ginzburg-Landau theories. The observed flux lattice orientation remains pinned to that of the crystal lattice for the field orientations studied. The form factors can be quantitatively understood within the framework of Ginzburg-Landau corrections to the London equations.